We have explained in various ways all things to men in this Qur'an; but of all things man is most contentious. 54 Nothing prevents people from believing when they are given guidance or from asking forgiveness of their Lord, but the fact that the fate of the previous peoples should befall them or to have the punishment come upon them face to face. 55 And We send not the Envoys, but good tidings to bear, and warning. Yet do the unbelievers dispute with falsehood, that they may rebut thereby the truth. They have taken My signs, and what they are warned of, in mockery. 56 Who is greater in evil than he who, when reminded of the verses of his Lord, turns away from them and forgets what his hands have sent before him? We have placed veils over their hearts lest they should understand it, and there is heaviness in their ears. Even if you call them to guidance, they will never be guided. 57 But your Lord is Most forgiving, full of Mercy. If He were to call them (at once) to account for what they have earned, then surely He would have hastened their punishment: but they have their appointed time, beyond which they will find no refuge. 58 And these cities! We destroyed them when they did wrong, and We had appointed for their destruction a tryst. 59